Home / 919,200.54-1,268,573.38-511,379.22

Finding the Fourth Proportional to 919,200.54, 1,268,573.38 and 511,379.22

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Solution

The fourth proportional to 919,200.54, 1,268,573.38 and 511,379.22 is: 705,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,200.54 : 1,268,573.38 = 511,379.22 : x
  2. Step 2: Convert to fraction form
    919,200.54/1,268,573.38 = 511,379.22/x
  3. Step 3: Cross multiply
    919,200.54x = 1,268,573.38 × 511,379.22
  4. Step 4: Simplify right side
    919,200.54x = 648,722,065,577.16
  5. Step 5: Solve for x
    x = 648,722,065,577.16/919,200.54
  6. Step 6: Final answer
    x = 705,745.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.